CN118409674A - Touch Sensor - Google Patents

Abstract

A touch sensor is provided. The touch sensor includes: a plurality of first sensor electrodes each including a first sensor pattern extending in a first direction and arranged in a second direction; a plurality of second sensor electrodes each including a second sensor pattern extending in a second direction and arranged in the first direction; an opening separated from the first sensor electrode and the second sensor electrode in the touch effective area; a first connection pattern disposed around the opening but not in the opening, the first connection pattern electrically connecting a first opening sensor pattern of the first sensor pattern adjacent to a corresponding portion of the opening in a first direction; first lines respectively connected to portions of the first sensor electrodes, the first lines extending to the periphery of the touch effective area; and second lines connected to portions of the second sensor electrodes, respectively, the second lines extending to the periphery of the touch effective area.

Description

Touch Sensor

This application is a divisional application of the invention patent application "Touch Sensor" with application date of May 29, 2019 and application number 201910455026.8.

Technical Field

Exemplary embodiments of the invention relate generally to a display device, and more particularly, to a touch sensor and a display device having the same.

Background technique

A touch sensor is an information input device and can be provided and used in a display device. For example, the touch sensor can be attached to one surface of a display panel or formed integrally with the display panel. A user can input information by pressing or touching the touch sensor while viewing an image displayed on the screen of the touch display device.

With the recent development of display technology, openings through which functional electronic elements can be inserted are formed in a display region and a touch region of a display device.

The above information disclosed in this Background section is only for understanding the background of the inventive concept and therefore it may contain information that does not constitute the prior art.

Summary of the invention

The device constructed according to an exemplary embodiment of the invention is optimized to accommodate an opening in a touch sensor for an electronic component and is capable of improving the touch sensing sensitivity and sensing uniformity of a touch active area of a touch sensor and a display device including the touch sensor (wherein the touch sensor includes such an opening).

For example, a touch sensor and a display device constructed according to some exemplary embodiments of the invention may include wiring lines arranged at both ends of a sensor electrode separated by an opening, so that the increase in the number of lines in the peripheral area can be minimized or reduced, and the sensing sensitivity and sensing uniformity in the touch effective area can be improved. In addition, a shielding electrode can be additionally inserted between the wiring lines to minimize the electrical influence between the lines in the peripheral area. Therefore, the touch sensing accuracy can be improved.

In addition, the touch sensor and the display device constructed according to some exemplary embodiments of the invention may include a connection pattern that bypasses the opening to connect the sensor pattern. Therefore, touch sensing can be performed on the entire area where the sensor electrode is disposed without adding any wiring line, and sufficient design space in the peripheral area can be fully ensured.

Additional features of the inventive concepts will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the inventive concepts.

According to one or more embodiments of the invention, a touch sensor has a touch effective area and a peripheral area surrounding at least a portion of the touch effective area, the touch sensor comprising: a first sensor electrode extending in a first direction and arranged in a second direction intersecting the first direction; a second sensor electrode extending in the second direction and arranged in the first direction; an opening separated from the first sensor electrode and the second sensor electrode in the touch effective area; a third sensor electrode extending in the first direction and arranged at a first portion of the opening; a fourth sensor electrode extending in the first direction and arranged at a second portion of the opening; a first line connected to portions of the first sensor electrode, respectively, the first line being arranged in a first peripheral area of the peripheral area adjacent to the first portion of the opening; a second line connected to portions of the second sensor electrode, respectively, the second line being arranged in a second peripheral area of the peripheral area adjacent to the second portion of the opening; a third line connected to portions of the third sensor electrode, the third line being arranged in the first peripheral area; a fourth line connected to portions of the fourth sensor electrode, the fourth line being arranged in the second peripheral area; and a first shielding electrode arranged in the second peripheral area, the first shielding electrode extending between the second line and the fourth line.

The portion of the first sensor electrode and the portion of the second sensor electrode to which the first and second wires may be connected, respectively, include distal ends of the first sensor electrode and the second sensor electrode, respectively.

At least one of the first line, the second line, the third line, and the fourth line may include a wiring line.

The first and second portions of the opening may include generally opposing first and second sides.

The third sensor electrode and the fourth sensor electrode may be electrically insulated from each other.

The third sensor electrode and the fourth sensor electrode may be spaced apart from a wall of the opening.

The first line and the third line may extend adjacent to each other.

The touch sensor may further include: a second shielding electrode disposed in the peripheral region and extending between the first line and the touch active area; and a third shielding electrode disposed in the peripheral region and located outside the first line and the third line.

The touch sensor may further include: a fourth shielding electrode extending between the fourth line and the touch active area; and a fifth shielding electrode disposed outside the second line.

The touch sensor may further include: additional lines respectively connected to another portion of the second sensor electrodes, the additional lines transmitting substantially the same driving signal as the second lines.

The touch sensor may further include: additional shielding electrodes respectively disposed between the additional line and the first line and between the additional line and the fourth line.

At least one of the second sensor electrodes can be electrically separated into a third part and a fourth part by an opening, wherein the third part of the second sensor electrode can be set at the third part of the opening, and wherein the fourth part of the second sensor electrode can be set at the fourth part of the opening, and the fourth part is substantially opposite to the third part.

A third portion of the second sensor electrode may not be connected to the second line.

The third portion of the second sensor electrode and the fourth portion of the second sensor electrode may be electrically connected by at least one connection disposed around the opening but not into the opening.

The connector and the second sensor electrode may be formed in different layers with an insulating layer interposed therebetween, wherein the connector may be connected to the third portion and the fourth portion via a contact hole formed through the insulating layer, and wherein the connector may include a low resistance metal.

The touch sensor may further include an electrostatic protection line provided in the peripheral area in an open loop shape around the first line, the second line, the third line, and the fourth line along the periphery of the touch active area.

The third sensor electrode and the fourth sensor electrode may be electrically connected to each other by at least one connection member disposed around the opening but not disposed into the opening.

The connection member may include a connection pattern spaced apart from the opening.

The connector may include a connection pattern, which is formed in a layer different from the layer of the third sensor electrode and the fourth sensor electrode, and an insulating layer is interposed between the connection pattern and the third sensor electrode and the fourth sensor electrode, wherein the connection pattern can be connected to the third sensor electrode and the fourth sensor electrode via contact holes in the insulating layer, and wherein the connection pattern may include a low-resistance metal.

According to one or more embodiments of the invention, a touch sensor includes: a plurality of first sensor electrodes, each including a first sensor pattern extending in a first direction, and the plurality of first sensor electrodes are arranged in a second direction intersecting the first direction; a plurality of second sensor electrodes, each including a second sensor pattern extending in the second direction, and the plurality of second sensor electrodes are arranged in the first direction; an opening separating the plurality of first sensor electrodes and the plurality of second sensor electrodes in a touch effective area; a first pattern, arranged around the opening but not arranged in the opening, the first pattern electrically connecting a first opening sensor pattern of the first sensor pattern adjacent to a corresponding portion of the opening in the first direction; a second pattern, arranged around the opening but not arranged in the opening, the second pattern electrically connecting a second opening sensor pattern of the second sensor pattern adjacent to a corresponding portion of the opening in the second direction; first lines, respectively connected to portions of the plurality of first sensor electrodes, the first lines extending to the periphery of the touch effective area; and second lines, respectively connected to portions of the plurality of second sensor electrodes, the second lines extending to the periphery of the touch effective area.

The portion of the plurality of first sensor electrodes and the portion of the plurality of second sensor electrodes to which the first line and the second line are respectively connected may include distal ends of the plurality of first sensor electrodes and the plurality of second sensor electrodes, respectively.

At least one of the first line and the second line may include a wiring line.

The first pattern and the second pattern may include a first connection pattern and a second connection pattern, respectively.

Each of the first pattern and the first opening sensor pattern may be disposed to be spaced apart from a wall of the opening.

The first pattern may be formed in a layer different from that of the first opening sensor pattern with an insulating layer interposed therebetween, wherein the first pattern may be connected to the first opening sensor pattern through a contact hole penetrating the insulating layer.

The first pattern may include a low resistance metal.

The first pattern may be formed of the same material and on the same layer as the first opening sensor pattern.

The touch sensor may further include an additional line connected to another portion of the first sensor electrode including the first opening sensor pattern to extend to the periphery of the touch active area.

The second sensor patterns may include second opening sensor patterns disposed adjacent to corresponding portions of the opening in the second direction, and the second opening sensor patterns may be separated from each other.

The touch sensor may further include an additional line connected to another portion of the plurality of second sensor electrodes to extend to a periphery of the touch active area.

The touch sensor may further include a second pattern disposed bypassing the opening, the second pattern electrically connecting the second opening sensor pattern.

The second pattern may be formed in a layer different from a layer of a second opening sensor pattern of the second sensor pattern, and an insulating layer is interposed between the second pattern and the second opening sensor pattern of the second sensor pattern, and wherein the second pattern may be connected to the second opening sensor pattern of the second sensor pattern via a contact hole formed through the insulating layer.

According to one or more embodiments of the invention, a display device includes: a display panel including an opening located at a portion of a display area; and a touch sensor including a touch effective area corresponding to the opening and the display area, the touch sensor being arranged on the display panel. The touch sensor may include: a first sensor electrode extending in a first direction and arranged in a second direction; a second sensor electrode extending in a second direction and arranged in the first direction; a first line connected to a first portion of the first sensor electrode, the first line extending to a first peripheral area adjacent to a first side of the touch effective area; a second line connected to a second portion of the second sensor electrode, the second line extending to a second peripheral area adjacent to a second side of the touch effective area, the second side being a side opposite to the first side relative to the touch effective area; an additional line connected to another portion of the first sensor electrode separated by the opening, the additional line extending to the second peripheral area; and a shielding electrode extending to the second peripheral area, the shielding electrode being arranged between the second line and the additional line.

The portion of the first sensor electrode and the portion of the second sensor electrode to which the first and second lines are respectively connected may include distal ends of the first sensor electrode and the second sensor electrode, respectively.

At least one of the first line, the second line, and the additional line may include a routing line.

The first and second portions of the opening may include generally opposing first and second sides.

According to one or more embodiments of the invention, a display device includes: a display panel including an opening located at a portion of a display area; and a touch sensor including a touch effective area corresponding to the opening and the display area, the touch sensor being arranged on the display panel. The touch sensor may include: a plurality of first sensor electrodes each including a first sensor pattern extending in a first direction, the plurality of first sensor electrodes being arranged in a second direction intersecting the first direction; a plurality of second sensor electrodes each including a second sensor pattern extending in a second direction, the plurality of second sensor electrodes being arranged in the first direction; and a connector electrically connecting a first opening sensor pattern of the first sensor pattern disposed adjacent to a first portion of the opening and a second opening sensor pattern of the first sensor pattern disposed adjacent to a second portion of the opening, the second portion being substantially opposite to the first portion, and the connector extending around the opening but not extending into the opening.

The first and second portions of the opening may include generally opposing first and second sides.

The connector may include a connection pattern.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings illustrate exemplary embodiments of the invention and together with the description serve to explain the inventive concept. The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification.

Now, example embodiments will be described more fully hereinafter with reference to the accompanying drawings; however, example embodiments may be implemented in different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example embodiments to those skilled in the art.

In the accompanying drawings, dimensions may be exaggerated for clarity of illustration. It will be understood that when an element is referred to as being "between" two elements, the element may be the only element between the two elements, or one or more intermediate elements may also be present. The same reference numerals always indicate the same elements.

FIG. 1 is a schematic diagram illustrating a display device constructed according to an exemplary embodiment of the invention.

FIG. 2A is a view illustrating an example of a touch sensor included in the display device of FIG. 1 .

FIG. 2B is a view illustrating an example of arrangement of lines and pads included in the touch sensor of FIG. 2A .

FIG. 3 is a view illustrating another example of a touch sensor included in the display device of FIG. 1 .

FIG. 4A is a view illustrating an example of arrangement of wires and pads included in the touch sensor of FIG. 3 .

FIG. 4B is a view illustrating another example of arrangement of wires and pads included in the touch sensor of FIG. 3 .

FIG. 5 is a view showing an example of a touch sensor constructed according to an exemplary embodiment of the invention.

FIG. 6 is a cross-sectional view illustrating an example of a section taken along a section line AA′ of the touch sensor of FIG. 5 .

FIG. 7 is a cross-sectional view illustrating another example of a cross section taken along a section line AA′ of the touch sensor of FIG. 5 .

FIG. 8 is a view illustrating an example of an intersection area between two lines of intersecting sensor patterns included in the touch sensor of FIG. 5 .

9 , 10 , 11 , and 12 are views illustrating examples of the touch sensor of FIG. 5 .

13A and 13B are views showing an example of a touch sensor constructed according to another exemplary embodiment of the invention.

FIG. 14 is a view showing an example of a touch sensor constructed according to still another exemplary embodiment of the invention.

FIG. 15 is a cross-sectional view illustrating an example of a section taken along a section line BB′ of the touch sensor of FIG. 14 .

FIG. 16 is a view illustrating an example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

FIG. 17 is a view illustrating another example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

FIG. 18 is a view illustrating another example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

FIG. 19 is a view illustrating another example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

FIG. 20 is a view showing an example of a touch sensor according to another exemplary embodiment of the invention.

Detailed ways

In the following description, for the purpose of illustration, many specific details are set forth to provide a thorough understanding of various exemplary embodiments or implementations of the invention. As used herein, "embodiment" and "implementation" as non-limiting examples of devices or methods using one or more inventive concepts disclosed herein are interchangeable words. However, it is apparent that various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. In other cases, well-known structures and devices are shown in block diagram form to avoid making various exemplary embodiments unnecessarily obscure. In addition, various exemplary embodiments may be different, but need not be exclusive. For example, without departing from the inventive concept, the specific shape, construction and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodiment.

Unless otherwise stated, the exemplary embodiments shown will be understood as providing exemplary features of different details of some ways in which the inventive concept can be implemented in practice. Therefore, unless otherwise stated, the features, components, modules, layers, films, panels, regions and/or aspects, etc. (hereinafter, individually or collectively referred to as "elements") of the various embodiments may be further combined, separated, interchanged and/or rearranged without departing from the inventive concept.

The use of cross hatching and/or shading in the drawings is generally used to make the boundaries between adjacent elements clear. Thus, unless otherwise specified, the presence or absence of cross hatching or shading does not convey or represent any preference or requirement for the specific material, material properties, size, ratio, commonality between the elements shown and/or any other characteristics, attributes, properties, etc. of the elements. In addition, in the drawings, the size and relative size of the elements may be exaggerated for the purpose of clarity and/or description. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially simultaneously or in an order opposite to the described sequence. In addition, the same reference numerals represent the same elements.

When an element such as a layer is referred to as being "on" another element or layer, "connected to" or "bonded to" another element or layer, the element may be directly on, directly connected to or directly bonded to the other element or layer, or there may be an intermediate element or layer. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to" or "directly bonded to" another element or layer, there is no intermediate element or intermediate layer. For this reason, the term "connection" may refer to a physical connection, an electrical connection and/or a fluid connection with or without an intermediate element. In addition, the D1 axis, the D2 axis and the D3 axis are not limited to the three axes of a rectangular coordinate system (such as the x-axis, the y-axis and the z-axis), but may be interpreted in a broader sense. For example, the D1 axis, the D2 axis and the D3 axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purpose of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Although the terms "first", "second", etc. may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another element. Therefore, without departing from the disclosed teachings, the first element discussed below may be referred to as the second element.

For descriptive purposes, spatially relative terms such as "under," "below," "under," "down," "above," "up," "above," "higher," "side" (e.g., as in "sidewall"), etc., may be used herein to describe the relationship of one element to other elements as shown in the accompanying drawings. In addition to the orientations depicted in the accompanying drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the accompanying drawings is turned over, an element described as "under" or "beneath" other elements or features would subsequently be positioned as "above" the other elements or features. Thus, the exemplary term "under" can include both above and below orientations. In addition, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), with the spatially relative descriptors used herein interpreted accordingly.

The terms used here are for the purpose of describing specific embodiments, and are not intended to be limiting. As used here, unless the context clearly indicates otherwise, the singular forms "one", "a kind of/person" and "the (described)" are also intended to include plural forms. In addition, when the term "includes" and its variations and/or "comprising" and its variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, elements, components and/or their groups, but one or more other features, integral bodies, steps, operations, elements, components and/or their groups are not excluded from existence or addition. It is also noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms rather than as degree terms, and are used to explain the measured values, calculated values and/or the inherent deviations of the values that will be identified by those of ordinary skill in the art.

Here, various exemplary embodiments are described with reference to cross-sectional views and/or exploded views as schematic diagrams of idealized exemplary embodiments and/or intermediate structures. As such, variations in the shapes of the diagrams caused by, for example, manufacturing techniques and/or tolerances are to be expected. Therefore, the exemplary embodiments disclosed herein should not necessarily be interpreted as being limited to the specific illustrated shapes of the regions, but will include deviations in shapes caused by, for example, manufacturing. In this way, the regions shown in the accompanying drawings may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the regions of the device, and are not necessarily intended to be limiting.

According to the practice in the art, some exemplary embodiments are described in terms of functional blocks, units and/or modules, and some exemplary embodiments are shown in the accompanying drawings. It will be understood by those skilled in the art that these functional blocks, units and/or modules are physically implemented by electronic (or optical) circuits (such as logic circuits, discrete components, microprocessors, hard-wired circuits, memory elements, wired connections, etc.) that can be formed using semiconductor-based manufacturing technology or other manufacturing technology. For functional blocks, units and/or modules implemented by microprocessors or other similar hardware, they can be programmed and controlled using software (e.g., microcode) to perform the various functions discussed here, and the functional blocks, units and/or modules can be selectively driven by firmware and/or software. It is also expected that each functional block, unit and/or module can be implemented by dedicated hardware, or implemented as a combination of dedicated hardware that performs some functions and processors that perform other functions (e.g., one or more programmed microprocessors and associated circuits). In addition, without departing from the scope of the inventive concept, each functional block, unit and/or module of some exemplary embodiments can be physically divided into two or more interactive and discrete functional blocks, units and/or modules. Furthermore, the functional blocks, units and/or modules of some exemplary embodiments may be physically combined into more complex functional blocks, units and/or modules without departing from the scope of the inventive concept.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this disclosure is a part. Unless explicitly defined as such herein, terms (such as those defined in general dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense.

FIG. 1 is a schematic diagram illustrating a display device constructed according to an exemplary embodiment of the invention.

1 , a touch display device 1000 according to an exemplary embodiment of the invention includes a sensor unit 100, a touch driver (T-IC) 200, a display panel 300 (may also be expressed as a "display panel DP"), and a display driver (also referred to as a display IC, D-IC) 400. The sensor unit 100 and the touch driver 200 constitute a touch sensor.

Meanwhile, although the sensor unit 100 and the display panel 300 are separated from each other in the exemplary embodiment of FIG1 , the present invention is not limited thereto. For example, the sensor unit 100 and the display panel 300 may be integrally manufactured.

In some exemplary embodiments, the sensor unit 100 may be disposed on at least one region of the display panel 300. For example, the sensor unit 100 may be disposed on at least one surface of the display panel 300 to overlap with the display panel 300. In an exemplary embodiment, the sensor unit 100 may be directly formed on at least one of the two surfaces of the display panel 300, or may be formed in the display panel 300. In another exemplary embodiment, the sensor unit 100 may be adhered to one surface of the display panel 300 using an adhesive layer/adhesive member.

The sensor unit 100 includes a touch active area TA capable of sensing a touch input and a non-active area (or peripheral area) PA surrounding at least a portion of the touch active area TA. In some exemplary embodiments, the touch active area TA may be set to correspond to the display area DA of the display panel 300, and the non-active area PA may be set to correspond to the non-display area NDA of the display panel 300. An opening OP (see FIG. 2A ) may be formed at a portion of the touch active area TA and the display area DA corresponding to the portion of the touch active area TA. A camera, a sensor, a speaker, a receiver, a physical button, etc. may be set in the opening OP.

In some exemplary embodiments, the touch sensor may include a self-capacitance touch sensor and/or a mutual-capacitance touch sensor.

The sensor electrodes included in the sensor unit 100 may be distributed in the touch active area TA to detect a position of a touch input when the touch input occurs in the touch active area TA.

The wiring lines are connected to the corresponding sensor electrodes. A predetermined driving signal is applied to some of the sensor electrodes through some of the wiring lines. In addition, a change in capacitance generated in the sensor electrodes is detected through the wiring lines.

The touch driver 200 may be electrically connected to the sensor unit 100 to drive and sense the sensor unit 100. In an example, the touch driver 200 may detect a touch input by supplying a driving signal to the sensor unit 100 and then receiving a sensing signal corresponding to the driving signal from the sensor unit 100.

The display panel 300 includes a display area DA and a non-display area NDA of at least one area surrounding the display area DA. The display area DA may be provided with a plurality of scan lines SL, a plurality of data lines DL, and a plurality of pixels PXL connected to the scan lines SL and the data lines DL. The non-display area NDA may be provided with various types of driving signals for driving the pixels PXL and/or lines for supplying driving power.

According to an exemplary embodiment of the invention, the type of the display panel 300 is not particularly limited. For example, the display panel 300 may be a self-luminous display panel such as an organic light-emitting display panel (OLED panel). Alternatively, the display panel 300 may be a non-luminous display panel such as a liquid crystal display panel (LCD panel), an electrophoretic display panel (EDP panel), an electrowetting display panel (EWD panel), and a quantum dot display panel.

The display driver 400 is electrically connected to the display panel 300 to supply a signal required to drive the display panel 300. In an example, the display driver 400 may include a scan driver for supplying a scan signal to the scan line SL, a data driver for supplying a data signal to the data line DL, and at least one of a timing controller for driving the scan driver and the data driver. In some exemplary embodiments, the scan driver, the data driver, and/or the timing controller may be integrated in one display IC (D-IC), but the invention is not limited thereto. For example, in another exemplary embodiment, at least one of the scan driver, the data driver, and the timing controller may be integrated or mounted on the display panel 300.

Fig. 2A is a view illustrating an example of a touch sensor included in the display device of Fig. 1. Fig. 2B is a view illustrating an example of arrangement of lines and pads (also referred to as lands) included in the touch sensor of Fig. 2A.

2A and 2B, the touch sensor TS may include a first sensor electrode IE1, a second sensor electrode IE2, a third sensor electrode IE3, a fourth sensor electrode IE4, an opening OP, first wiring lines RL1-1, RL1-2, and RL1-3, second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5, third wiring lines RL3-1 and RL3-2, fourth wiring lines RL4-1 and RL4-2, and a first shielding electrode G1. The touch sensor TS may also include additional shielding electrodes G2, G3, G4, and G5, electrostatic protection lines ES1 and ES2, and the like.

The touch sensor TS may include a touch active area TA and a peripheral area surrounding at least a portion of the touch active area TA. The opening OP may be formed as a plane vertically penetrating the touch active area TA. The shape, size, and number of the opening OP are not limited and may be applied in various forms according to the embodiment and purpose. For example, a camera, a sensor, a speaker, a receiver, a physical button, etc. may be provided in the opening OP.

Each of the first sensor electrode IE1, the second sensor electrode IE2, the third sensor electrode IE3, and the fourth sensor electrode IE4 may be formed by a repeated arrangement of a sensor pattern. In an exemplary embodiment, each of the first sensor electrode IE1, the third sensor electrode IE3, and the fourth sensor electrode IE4 may have a shape extending in the first direction DR1 and may be arranged in the second direction DR2. Although FIG. 2A shows that the sensor pattern has a diamond shape, the shape of the sensor pattern is not limited thereto.

In the present exemplary embodiment, the third sensor electrode IE3 and the fourth sensor electrode IE4 may be a part selected from the arrangement of the first sensor electrode IE1, and have substantially the same function and shape as the first sensor electrode IE1. That is, the third sensor electrode IE3 and the fourth sensor electrode IE4 may represent predetermined first sensor electrodes IE1 separated from each other by the opening OP. In the present exemplary embodiment, for the convenience of description, the first sensor electrodes IE1 separated from each other at the respective sides of the opening OP are respectively defined as the third sensor electrode IE3 and the fourth sensor electrode IE4. In addition, each of the third sensor electrode IE3 and the fourth sensor electrode IE4 may be provided as a single or multiple according to the size of the opening OP, etc. However, the third sensor electrode IE3 and the fourth sensor electrode IE4 correspond one to one.

For example, a portion of the first sensor electrode IE1 separated by the opening OP and disposed at a first side of the opening OP may be defined as a third sensor electrode IE3, and a portion of the first sensor electrode IE1 separated by the opening OP and disposed at a second side (opposite to the first side) of the opening OP may be defined as a fourth sensor electrode IE4. For example, referring to FIG. 2A, the first side may be the right side of the opening OP, and the second side may be the left side of the opening OP. In addition, the third side of the opening OP may be the upper side of the opening OP, and the fourth side of the opening OP may be the lower side of the opening OP.

Each of the first sensor electrode IE1, the third sensor electrode IE3, and the fourth sensor electrode IE4 may be arranged in the second direction DR2. The second direction DR2 may be a direction substantially orthogonal to the first direction DR1. Each of the first sensor electrode IE1, the third sensor electrode IE3, and the fourth sensor electrode IE4 may have a shape in which the first sensor patterns SP1 are connected to each other. The first sensor electrode IE1, the third sensor electrode IE3, and the fourth sensor electrode IE4 may sense an external input (touch, etc.) using a mutual capacitance method and/or a self-capacitance method.

The second sensor electrodes IE2 may extend in the second direction DR2 while crossing the first sensor electrodes IE1 and be arranged in the first direction DR1. In an exemplary embodiment, the second sensor electrodes IE2 may include second sensor patterns SP2 and connection portions having a bridge shape connecting the second sensor patterns SP2 to each other.

In an exemplary embodiment, some of the second sensor electrodes IE2 may also be separated from each other by the openings OP.

The first sensor electrode IE1, the second sensor electrode IE2, the third sensor electrode IE3, and the fourth sensor electrode IE4 and the conductive pattern connecting the first sensor electrode IE1, the second sensor electrode IE2, the third sensor electrode IE3, and the fourth sensor electrode IE4 do not contact the side wall of the opening OP. That is, the electrode materials of the first sensor electrode IE1, the second sensor electrode IE2, the third sensor electrode IE3, and the fourth sensor electrode IE4 and the conductive pattern are not exposed to the side wall of the opening OP.

The first wiring lines RL1-1, RL1-2, and RL1-3 may be connected to one end of each of the first sensor electrodes IE1. The first wiring lines RL1-1, RL1-2, and RL1-3 may extend in the first peripheral area PA1 adjacent to the first side. The extended first wiring lines RL1-1, RL1-2, and RL1-3 may be connected to the pad unit PD formed at one side of the peripheral area. In an exemplary embodiment, the pad unit PD may be connected to a flexible printed circuit (FPC) including a touch driver, etc.

In an exemplary embodiment, the first wiring lines RL1 - 1 , RL1 - 2 , and RL1 - 3 may transmit a signal changed due to a capacitance change in the touch active area TA.

The second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 may be connected to one end of each second sensor electrode IE2. The second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 may extend in the second peripheral area PA2 adjacent to the second side. The extended second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 may be connected to the pad unit PD. In an exemplary embodiment, the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 may continuously transmit a predetermined drive signal to the second sensor electrode IE2. However, this is merely illustrative, and the functions of the first wiring line and the second wiring line are not limited thereto.

The third wiring lines RL3-1 and RL3-2 may be connected to one end of each third sensor electrode IE3 and extend in the first peripheral area PA1. That is, the third wiring lines RL3-1 and RL3-2 may be substantially some of the first wiring lines RL1-1, RL1-2, and RL1-3. In other words, the first wiring lines RL1-1, RL1-2, and RL1-3 and the third wiring lines RL3-1 and RL3-2 may be disposed to be separated from each other according to the positions of the first sensor electrode IE1 and the third sensor electrode IE3 arranged in the second direction DR2.

The fourth wiring lines RL4-1 and RL4-2 may be connected to one end of each fourth sensor electrode IE4 and extend in the second peripheral area PA2. The extended fourth wiring lines RL4-1 and RL4-2 may be connected to the pad unit PD. The fourth wiring lines RL4-1 and RL4-2 may be disposed to be separated from the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5.

The wiring lines (i.e., the fourth wiring lines RL4-1 and RL4-2) may be connected to only the fourth sensor electrode IE4 at the other end of the first sensor electrode IE1. According to an exemplary embodiment, the second sensor electrodes IE2 separated by the opening OP in the second direction DR2 may be electrically connected to each other by at least one connection pattern disposed around (or around but not entering) the opening OP.

In an exemplary embodiment, the third sensor electrode IE3 and the fourth sensor electrode IE4 may be electrically insulated from each other. In order to sense a touch in an area in which the fourth sensor electrode IE4 is disposed, fourth wiring lines RL4-1 and RL4-2 are necessary. A sensing signal sensed by the third sensor electrode IE3 may be transmitted through the third wiring lines RL3-1 and RL3-2, and a sensing signal sensed by the fourth sensor electrode IE4 may be transmitted through the fourth wiring lines RL4-1 and RL4-2.

In another exemplary embodiment, the third sensor electrode IE3 and the fourth sensor electrode IE4 may be electrically connected to each other through a predetermined connection pattern provided bypassing the opening OP. Therefore, the touch sensitivity and sensing uniformity corresponding to the opening OP in the first direction DR1 may be reduced due to the increase in RC delay and voltage drop caused by the connection pattern. The third wiring lines RL3-1 and RL3-2 and the fourth wiring lines RL4-1 and RL4-2 are respectively connected to the third sensor electrode IE3 and the fourth sensor electrode IE4, so that the RC delay can be reduced, and the sensing sensitivity and sensing uniformity can be improved.

The first shielding electrode G1 may extend in the second peripheral area PA2 and may be disposed between the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 and the fourth wiring lines RL4-1 and RL4-2. The first shielding electrode G1 may block electrical influences such as interference or coupling between the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 and the fourth wiring lines RL4-1 and RL4-2. The first shielding electrode G1 may be a floating electrode or a ground electrode. In an exemplary embodiment, the length of the first shielding electrode G1 in the second peripheral area PA2 in the second direction DR2 may be shorter than the length of the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5, and may be longer than the length of the fourth wiring lines RL4-1 and RL4-2.

In an exemplary embodiment, the second shielding electrode G2, the third shielding electrode G3, the fourth shielding electrode G4 and the fifth shielding electrode G5 may be further disposed in the peripheral area. Each of the second shielding electrode G2, the third shielding electrode G3, the fourth shielding electrode G4 and the fifth shielding electrode G5 may also be a floating electrode or a ground electrode.

The second shielding electrode G2 may be disposed at the inner side of the first wiring lines RL1-1, RL1-2, and RL1-3. The second shielding electrode G2 may block electrical influence between the first wiring lines RL1-1, RL1-2, and RL1-3 and the sensor electrodes disposed adjacent to the first wiring lines RL1-1, RL1-2, and RL1-3.

The third shielding electrode G3 may be disposed at the outer sides of the first wiring lines RL1-1, RL1-2, and RL1-3 and the third wiring lines RL3-1 and RL3-2. The third shielding electrode G3 may block electrical influences between the first wiring lines RL1-1, RL1-2, and RL1-3 and other signal lines disposed at the outer sides of the first wiring lines RL1-1, RL1-2, and RL1-3.

The fourth shielding electrode G4 may be disposed at the inner side of the fourth wiring lines RL4-1 and RL4-2. The fourth shielding electrode G4 may block electrical influence between the fourth wiring lines RL4-1 and RL4-2 and the sensor electrodes disposed adjacent to the fourth wiring lines RL4-1 and RL4-2.

The fifth shielding electrode G5 may be disposed at the outer side of the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5. The fifth shielding electrode G5 may block electrical influences between the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 and other signal lines disposed at the outer side of the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5.

In an exemplary embodiment, the peripheral area may further include a first electrostatic protection line ES1 arranged in an open loop shape to surround the first to fourth wiring lines RL1-1, RL1-2, RL1-3, RL2-1, RL2-2, RL2-3, RL2-4, RL2-5, RL3-1, RL3-2, RL4-1, and RL4-2 along the periphery of the touch active area TA. The first electrostatic protection line ES1 may be a ground line. The first electrostatic protection line ES1 may be formed to surround the outermost edges of the first to fourth wiring lines RL1-1, RL1-2, RL1-3, RL2-1, RL2-2, RL2-3, RL2-4, RL2-5, RL3-1, RL3-2, RL4-1, and RL4-2 and the shielding electrodes G1, G2, G3, G4, and G5. The first electrostatic protection line ES1 can protect the sensor electrodes IE1, IE2, IE3 and IE4 and the first to fourth wiring lines RL1-1, RL1-2, RL1-3, RL2-1, RL2-2, RL2-3, RL2-4, RL2-5, RL3-1, RL3-2, RL4-1 and RL4-2 from static electricity introduced from the outside.

In an exemplary embodiment, a second electrostatic protection line ES2 disposed in an open loop shape between the second shielding electrode G2 and the fourth shielding electrode G4 may be further included in the peripheral region. The second electrostatic protection line ES2 may protect the sensor electrodes IE1, IE2, IE3, and IE4 and the first to fourth wiring lines RL1-1, RL1-2, RL1-3, RL2-1, RL2-2, RL2-3, RL2-4, RL2-5, RL3-1, RL3-2, RL4-1, and RL4-2 from static electricity introduced from the outside.

2B , in the positional relationship between the wiring line and the shielding electrode, the wiring line and the shielding electrode may extend substantially identically to the pad unit PD.

The pad unit PD may be divided into a first pad unit PD1 and a second pad unit PD2, and different FPCs for touch driving may be attached (or connected) to the corresponding pad units PD1 and PD2. For example, the FPC for touch driving may be attached to the peripheral area in the form of FOG (film on glass). However, this is merely illustrative, and the pad units PD1 and PD2 may constitute a single pad unit, so that one FPC for touch driving may be attached to the pad units PD1 and PD2.

The first pad unit PD1 may sequentially include, in the first direction DR1, a pad EP1 connected to the first electrostatic protection line ES1, a pad GP5 connected to the fifth shielding electrode G5, pads RP2-1, RP2-2, RL2-3, RL2-4, and RP2-5 respectively connected to the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5, a pad GP1 connected to the first shielding electrode G1, pads RP4-1 and RP4-2 respectively connected to the fourth wiring lines RL4-1 and RL4-2, a pad GP4 connected to the fourth shielding electrode G4, and a pad EP3 connected to the second electrostatic protection line ES2.

The second pad unit PD2 may sequentially include, in the first direction DR1, a pad EP4 connected to the second electrostatic protection line ES2, a pad GP2 connected to the second shielding electrode G2, pads RP1-1, RP1-2, RP3-1, RP3-2, and RP1-3 respectively connected to the first wiring lines RL1-1, RL1-2, the third wiring lines RL3-1 and RL3-2, and the first wiring line RL1-3, a pad GP3 connected to the third shielding electrode G3, and a pad EP2 connected to the first electrostatic protection line ES1.

As described above, in the touch sensor TS including the opening OP according to the exemplary embodiment of the invention, the wiring lines (i.e., the third wiring lines RL3-1 and RL3-2 and the fourth wiring lines RL4-1 and RL4-2) are respectively arranged at both ends of the sensor electrodes (i.e., the third sensor electrode IE3 and the fourth sensor electrode IE4) separated corresponding to the opening OP, so that the increase in the number of wires in the peripheral area can be minimized, and the sensing sensitivity and sensing uniformity in the touch effective area TA can be improved. In addition, the first shielding electrode G1 is additionally inserted between the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4 and RL2-5 and the additionally arranged fourth wiring lines RL4-1 and RL4-2, so that the electrical influence between the wires in the peripheral area can be reduced. Therefore, the touch sensing accuracy can be improved.

Fig. 3 is a view illustrating another example of a touch sensor included in the display device of Fig. 1. Fig. 4A is a view illustrating an example of arrangement of wires and pads included in the touch sensor of Fig. 3. Fig. 4B is a view illustrating another example of arrangement of wires and pads included in the touch sensor of Fig. 3.

The touch sensor according to the present exemplary embodiment is the same as the touch sensor according to FIGS. 2A and 2B except for the configuration of the additional wiring line connected to the second sensor electrode IE2. Therefore, components identical or corresponding to those of the touch sensor according to FIGS. 2A and 2B are denoted by the same reference numerals, and repeated description thereof will be omitted.

3, 4A and 4B, the touch sensor TS may include a first sensor electrode IE1, a second sensor electrode IE2, a third sensor electrode IE3, a fourth sensor electrode IE4, an opening OP, first wiring lines RL1-1, RL1-2 and RL1-3, second wiring lines RL2-1, RL2-2, RL2-3, RL2-4 and RL2-5, third wiring lines RL3-1 and RL3-2, fourth wiring lines RL4-1 and RL4-2, additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4 and RL2'-5, and a first shielding electrode G1. The touch sensor TS may also include additional shielding electrodes G2, G3, G4, G5 and G6, electrostatic protection lines ES1 and ES2, etc.

The additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5 may be connected to the other end of each second sensor electrode IE2. The additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5 may transmit substantially the same drive signal as the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5. That is, a double wiring line structure may be applied to the second sensor electrode IE2. Therefore, the resistance value of the second sensor electrode IE2 in the second direction DR2 is reduced, and the RC time constant (e.g., τ=RC) is reduced. Therefore, the RC delay of the drive signal may be improved. The number of pads may be increased due to the arrangement of the additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5.

Similar to the third sensor electrode IE3 and the fourth sensor electrode IE4, at least one sensor electrode of the second sensor electrode IE2 corresponding to the opening OP may be divided into a third side portion positioned at a third side of the opening OP and a fourth side portion positioned at a fourth side of the opening OP. Referring to FIG. 3 , the third side may correspond to a direction facing one end of each second sensor electrode IE2 and may be an upper side of the opening OP. The fourth side may correspond to a direction facing the other end of each second sensor electrode IE2 and may be a lower side of the opening OP.

In an exemplary embodiment, the third side and the fourth side may be electrically separated from each other. The second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5 connected to the third side and the additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5 connected to the fourth side are not connected to each other.

In another exemplary embodiment, the third side portion and the fourth side portion may be electrically connected to each other through at least one connection pattern disposed bypassing the opening OP.

The first shielding electrode G1, the second shielding electrode G2, the third shielding electrode G3, the fourth shielding electrode G4, and the fifth shielding electrode G5 described with reference to FIG. 2A and the electrostatic protection lines ES1 and ES2 may be formed in the peripheral region. The fourth shielding electrode G4 may be disposed between the fourth wiring lines RL4-1 and RL4-2 and the additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5.

In an exemplary embodiment, the sixth shielding electrode G6 may be disposed between the additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5 and the second electrostatic protection line ES2.

4A and 4B , in the positional relationship between the wiring line and the shielding electrode, the wiring line and the shielding electrode may extend substantially identically to the pad unit PD.

Compared with the pad unit of FIG2A, the first pad unit PD1 of FIG4A may further include a pad disposed between the pad GP4 and the pad EP3 connected to the second electrostatic protection line ES2. The pad may include pads RP2'-1, RP2'-2, RL2'-3, RL2'-4, and RL2'-5 connected to the additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5, respectively, and a pad GP6 connected to the sixth shielding electrode G6.

The first pad unit PD1 may be connected to an FPC for touch driving, which drives the second wiring lines RL2-1, RL2-2, RL2-3, RL2-4, and RL2-5, the fourth wiring lines RL4-1 and RL4-2, and the additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5. The second pad unit PD2 of FIG. 4A may be connected to an FPC for touch driving, which drives the first wiring lines RL1-1, RL1-2, and RL1-3, and the third wiring lines RL3-1 and RL3-2.

The pad unit PD3 of FIG. 4B may indicate that all pads are connected to one FPC for touch driving.

As described above, the touch sensor TS may further include additional wiring lines RL2'-1, RL2'-2, RL2'-3, RL2'-4, and RL2'-5 connected to the other ends of the respective second sensor electrodes IE2, so that the touch sensing sensitivity may be improved.

FIG. 5 is a view showing an example of a touch sensor constructed according to an exemplary embodiment of the invention.

5 , the first sensor electrode IE1 , the second sensor electrode IE2 , the opening OP, and the connection patterns CP1 and CP2 may be disposed in the touch active area TA of the touch sensor.

Each of the first sensor electrodes IE1 may include a first sensor pattern SP1 extending in the first direction DR1. The first sensor electrodes IE1 may be arranged in a second direction DR2 intersecting the first direction DR1. Some of the first sensor electrodes IE1 may be laterally separated from each other by the openings OP.

Each of the second sensor electrodes IE2 may include a second sensor pattern SP2 extending in the second direction DR2. The second sensor electrodes IE2 may be arranged in the first direction DR1 intersecting the second direction DR2. Some of the second sensor electrodes IE2 may be vertically separated from each other by the openings OP.

The opening OP may be formed while vertically penetrating the touch active area TA formed by the first and second sensor electrodes IE1 and IE2 .

Among the sensor electrodes corresponding to the opening OP among the first sensor electrodes IE1, the opening sensor patterns OSP1 and OSP1' disposed adjacent to the respective sides of the opening OP in the second direction DR2 may have a shape in which a portion of the first sensor pattern SP1 is cut by the opening OP. For example, the opening sensor patterns OSP1 and OSP1' may be formed at the left and right sides of the opening OP, respectively. Each of the opening sensor patterns OSP1 and OSP1' may be formed to be spaced apart from the sidewall of the opening OP.

The opening sensor patterns OSP1 and OSP1' corresponding to each other included in one first sensor electrode IE1 may be defined as a first opening sensor pattern pair OSP1 and OPS1'. The first opening sensor pattern pair OSP1 and OPS1' may be electrically connected by a first connection pattern CP1. The first connection pattern CP1 may be formed bypassing the opening OP. Therefore, the first sensor electrode IE1 corresponding to the opening OP is continuous as one electrode from one end of the opening OP to the other end of the opening OP.

Similarly, the second opening sensor pattern pair OSP2 and OSP2' included in the other first sensor electrode IE1 may be electrically connected through the second connection pattern CP2 formed bypassing the opening OP. However, this is merely illustrative, and the shape, size, and number of the opening sensor pattern pair are not limited thereto.

5 shows a case where each of the opening sensor patterns OSP1, OSP1', OSP2, and OSP2' has the first sensor pattern SP1 cut into a triangular shape, the shapes of the opening sensor patterns OSP1, OSP1', OSP2, and OSP2' are not limited thereto. The shape of each of the opening sensor patterns OSP1, OSP1', OSP2, and OSP2' may be modified corresponding to the position and shape of the opening OP.

5 , the first wiring lines RL1-1 and RL1-2 may be connected to only one end of each first sensor electrode IE1 to extend to a peripheral area surrounding the touch active area TA.

In an exemplary embodiment, the first connection pattern CP1 and the second connection pattern CP2 may be disposed around the upper side or the lower side of the opening OP adjacent thereto. For example, referring to FIG. 5 , the first connection pattern CP1 may be disposed around the upper side of the opening OP, and the second connection pattern CP2 may be disposed around the lower side of the opening OP.

The first connection pattern CP1 and the second connection pattern CP2 should not be viewed by the user. Therefore, the first connection pattern CP1 and the second connection pattern CP2 may have a sufficiently thin width so as not to be recognized by the user during normal operation. In addition, the first connection pattern CP1 and the second connection pattern CP2 may be formed of a low-resistance metal to prevent an increase in resistance and an increase in RC delay caused by the connection pattern. For example, the first connection pattern CP1 and the second connection pattern CP2 may include molybdenum, silver, titanium, copper, aluminum, and alloys thereof.

In an exemplary embodiment, the second sensor pattern SP2 forming the second sensor electrode IE2 may also include an opening sensor pattern having a shape in which a portion of the second sensor pattern SP2 disposed adjacent to the opening sensor pattern is cut corresponding to the opening sensor pattern. The opening sensor patterns of the second sensor electrode IE2 may be electrically insulated from each other. In an exemplary embodiment, a double wiring structure may be applied to the second sensor electrode IE2. Therefore, the second wiring lines RL2-1 and RL2-2 may be respectively connected to one end of the second sensor electrode IE2, and the additional wiring lines RL2'-1 and RL2'-2 may be respectively connected to the other end of the second sensor electrode IE2.

As described above, the touch sensor having the opening OP and the display device having the touch sensor according to the exemplary embodiment of the invention include the first connection pattern CP1 connected between the opening sensor patterns OSP1 and OSP1'. Therefore, touch sensing can be performed on the entire area in which the first sensor electrode IE1 and the second sensor electrode IE2 are provided without adding any wiring line, and a design space of the peripheral area can be ensured.

FIG. 6 is a cross-sectional view illustrating an example of a section taken along a section line AA′ of the touch sensor of FIG. 5 .

5 and 6 , the touch sensor TS may include a first conductive layer 22 constituting a first connection pattern CP1 in the touch active area TA, a second conductive layer 26 constituting first and second sensor electrodes IE1 and IE2 in the touch active area TA, and a plurality of insulating layers 24 and 28 .

In an exemplary embodiment, the touch sensor TS may be directly disposed on the display panel DP.

The display panel DP may include a base layer 10, an encapsulation layer 16, and a circuit element layer 12 and a display element layer 14 disposed between the base layer 10 and the encapsulation layer 16. The circuit element layer 12, the display element layer 14, and the encapsulation layer 16 are not formed in the opening OP. In an exemplary embodiment, the circuit element layer 12 and the display element layer 14 may be disposed to be separated from the sidewall SW of the opening OP by a predetermined distance.

The base layer 10 may include a synthetic resin film, a glass substrate, a metal substrate, an organic/inorganic composite material substrate, and the like.

The circuit element layer 12 may include a transistor structure for light emission of the display element layer 14. The display element layer 14 may include a light emitting layer such as an organic emission layer and a plurality of electrode layers for supplying voltage or current to the light emitting layer.

In an exemplary embodiment, the encapsulation layer 16 may have a form in which an organic layer and an inorganic layer are alternately deposited a plurality of times. The encapsulation layer 16 may have flexibility. In an exemplary embodiment, the encapsulation layer 16 may be an encapsulation substrate provided in the form of a glass substrate.

The touch sensor TS may be disposed on the encapsulation layer 16. The touch sensor TS may be directly disposed on the encapsulation layer 16, or may be adhered to the encapsulation layer 16 with an adhesive member interposed therebetween.

The touch sensor TS may include a first conductive layer 22, a first insulating layer 24, a second conductive layer 26, and a second insulating layer 28. The first conductive layer 22 and the second conductive layer 26 may have a single layer structure or a multi-layer structure.

The first conductive layer 22 and the second conductive layer 26 may include a plurality of patterns.

In an exemplary embodiment, the first conductive layer 22 may be disposed on the encapsulation layer 16 and include a first connection pattern CP1. The first conductive layer 22 may include a low-resistance metal and may be an opaque electrode. For example, the first conductive layer 22 may include molybdenum, silver, titanium, copper, aluminum, and alloys thereof. The first conductive layer 22 including the first connection pattern CP1 may be disposed or patterned to be separated from the sidewall SW of the opening OP. The first connection pattern CP1 may be disposed to bypass the opening OP.

In an exemplary embodiment, the first conductive layer 22 may include a connection portion having a bridge shape connecting the second sensor patterns SP2 .

The first insulating layer 24 covering the first conductive layer 22 may be disposed on the encapsulation layer 16. The first insulating layer 24 may include an inorganic material, an organic material, or a composite material.

The second conductive layer 26 may be disposed on the first insulating layer 24. The second conductive layer 26 may form the first sensor pattern SP1 and the second sensor pattern SP2 including the opening sensor patterns OSP1 and OSP1' and the first sensor electrode IE1 and the second sensor electrode IE2. The second conductive layer 26 may include a transparent conductive material. For example, the second conductive layer 26 may include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium tin zinc oxide (ITZO). In addition, the transparent conductive material may include a conductive polymer such as PEDOT, metal nanowires, graphene, and the like. In an exemplary embodiment, each of the sensor patterns SP1 and SP2 and the opening sensor patterns OSP1 and OSP1' formed by the second conductive layer 26 may have a mesh shape to prevent the sensor pattern from being viewed by a user. The second conductive layer 26 may be disposed or patterned to be separated from the sidewall SW of the opening OP.

In an exemplary embodiment, the second conductive layer 26 may be connected to the first conductive layer 22 through a contact hole CNT penetrating the first insulating layer 24. For example, the first connection pattern CP1 may be connected to each of the open sensor patterns OSP1 and OSP1' through the contact hole CNT.

The second insulating layer 28 covering the second conductive layer 26 may be disposed on the first insulating layer 24. The second insulating layer 28 may include an inorganic material, an organic material, or a composite material.

In an exemplary embodiment, functional layers such as an anti-reflection layer, an anti-fingerprint layer, a hard coating layer, and a protective film may be further provided on the touch sensor TS.

FIG. 7 is a cross-sectional view illustrating another example of a cross section taken along a section line AA′ of the touch sensor of FIG. 5 .

The stack structure of FIG7 is substantially the same as that of the touch sensor of FIG6 except for the positions of the first connection pattern CP1 and the sensor electrodes including the opening sensor patterns OSP1 and OSP1′. Therefore, components identical or corresponding to those of the touch sensor of FIG6 will be denoted by the same reference numerals, and repeated description thereof will be omitted.

7 , the touch sensor TS may include a first conductive layer 23 constituting first and second sensor electrodes IE1 and IE2 in the touch active area TA, a second conductive layer 27 constituting first connection patterns CP1 in the touch active area TA, and a plurality of insulating layers 24 and 28 .

The first conductive layer 23 may form the sensor patterns SP1 and SP2 including the opening sensor patterns OSP1 and OSP1'. The first conductive layer 23 may include a transparent conductive material. The first conductive layer 23 may be formed or patterned to be spaced apart from the sidewall SW of the opening OP.

The first insulating layer 24 covering the first conductive layer 23 may be disposed on the encapsulation layer 16. The first insulating layer 24 may include an inorganic material, an organic material, or a composite material.

The second conductive layer 27 may be disposed on the first insulating layer 24. The second conductive layer 27 may include a first connection pattern CP1. The second conductive layer 27 may include a low resistance metal and may be an opaque electrode. The second conductive layer 27 may be formed or patterned to be spaced apart from the sidewall SW of the opening OP.

In an exemplary embodiment, the second conductive layer 27 may be connected to the first conductive layer 23 through a contact hole CNT penetrating the first insulating layer 24. For example, the first connection pattern CP1 may be connected to each of the open sensor patterns OSP1 and OSP1' through the contact hole CNT.

The second insulating layer 28 covering the second conductive layer 27 may be disposed on the first insulating layer 24. The second insulating layer 28 may include an inorganic material, an organic material, or a composite material.

FIG. 8 is a view illustrating an example of an intersection area EE between two lines of intersecting sensor patterns included in the touch sensor of FIG. 5 .

8 , the touch sensor TS may include a first sensor pattern SP1 , a second sensor pattern SP2 , a connection portion C1 , and a plurality of bridges C2 - 1 and C2 - 2 in one intersection area EE.

The first sensor pattern SP1 and the connection portion C1 may be connected to each other on one plane or the same layer.

The second sensor patterns SP2 may be disposed to be spaced apart from each other. The second sensor patterns SP2 may be connected to each other through bridges C2-1 and C2-2. The bridges C2-1 and C2-2 may connect the second sensor patterns SP2 adjacent to each other in a bridge shape through a contact hole CNT-1. In an exemplary embodiment, the bridges C2-1 and C2-2 may be formed of the same material as the connection patterns CP1 and CP2 through the same process and may be disposed on the same layer.

In exemplary embodiments, the first sensor pattern SP1 and the second sensor pattern SP2 may include a transparent conductive material.

The touch sensor TS may sense a touch by detecting a capacitance change between the first sensor pattern SP1 and the second sensor pattern SP2 .

In an exemplary embodiment, the touch sensor TS may further include a dummy electrode DM disposed between the sensor patterns SP1 and SP2 that are separated from each other. The dummy electrode DM is formed by the same process as the first sensor pattern SP1 and the second sensor pattern SP2. Therefore, the dummy electrode DM may include the same material and have the same stacking structure. The dummy electrode DM is a floating electrode and is not electrically connected to the first sensor pattern SP1 and the second sensor pattern SP2. The dummy electrode DM is disposed so that the boundary area between the first sensor pattern SP1 and the second sensor pattern SP2 is not easily recognized. In addition, the edge effect between the first sensor pattern SP1 and the second sensor pattern SP2 can be controlled by adjusting the width and thickness of the dummy electrode DM, and the capacitance between the first sensor pattern SP1 and the second sensor pattern SP2 can be optimized.

9 , 10 , 11 , and 12 are views illustrating examples of the touch sensor of FIG. 5 .

The touch sensors of FIGS. 9 , 10 , 11 , and 12 are substantially the same as or similar to the touch sensor of FIG. 5 , except for the structure of the connection pattern and/or the arrangement of the wiring lines. Therefore, components identical or corresponding to those of the touch sensor of FIG. 5 are denoted by the same reference numerals, and their repeated description will be omitted.

9 , 10 , 11 , and 12 , the first sensor electrode IE1 , the second sensor electrode IE2 , the opening OP, and the connection patterns CP1 and CP2 may be disposed in the touch active area TA of each of the touch sensors.

The first opening sensor pattern pair OSP1 and OSP1' disposed adjacent to the opening OP may be electrically connected through the first connection pattern CP1, and the second opening sensor pattern pair OSP2 and OSP2' may be electrically connected through the second connection pattern CP2.

The first wiring lines RL1-1 and RL1-2 may be connected to one end of the first sensor electrode IE1 corresponding to the opening OP, respectively. In an exemplary embodiment, referring to FIG. 9 , additional wiring lines RL1′-1 and RL1′-2 may be connected to the other end of the first sensor electrode IE1, respectively. The additional wiring lines RL1′-1 and RL1′-2 may be substantially the same as the fourth wiring lines RL4-1 and RL4-2 of FIG. 3 . That is, a double wiring structure may be applied to the first sensor electrode IE1 corresponding to the opening OP. The additional wiring lines RL1′-1 and RL1′-2 together with the first wiring lines RL1-1 and RL1-2 may transmit a sensing signal to the touch driver.

Therefore, the RC delay can be reduced due to the addition of the additional wiring lines RL1'-1 and RL1'-2, and the signal transmission timing variation between the left and right sides of the opening OP for each touch point can be reduced. Therefore, the sensing accuracy and uniformity in the entire touch active area TA can be improved.

In an exemplary embodiment, referring to FIG. 10 , the touch sensor may include a plurality of first sensor electrodes IE1 corresponding to the opening OP. The first connection pattern CP1 and the second connection pattern CP2 connecting the corresponding opening sensor pattern pairs OSP1, OSP1′, OSP2, and OSP2′ may be disposed to bypass the opening OP at the same side of the opening OP. The first connection pattern CP1 and the second connection pattern CP2 may be electrically isolated from each other. That is, the first connection pattern CP1 and the second connection pattern CP2 disclosed in FIG. 10 may be designed according to the position of the opening OP without any short circuit with other conductive patterns.

In an exemplary embodiment, referring to Fig. 11, the first opening sensor pattern pair OSP1 and OSP1' may be connected by a plurality of first connection patterns CP1 and CP1'. Similarly, the second opening sensor pattern pair OSP2 and OSP2' may be connected by a plurality of second connection patterns CP2 and CP2'. That is, a plurality of connection patterns are connected to the corresponding opening sensor pattern pair, so that the total resistance and RC delay may be reduced.

12, an exemplary embodiment shows that a wiring line may not be connected to one end of each of the second sensor electrodes IE2 corresponding to the upper side of the opening OP. That is, the second sensor electrode IE2 corresponding to the upper side of the opening OP may be floating, and the area corresponding to the upper side of the opening OP may be a touch non-active area NTA. Touch sensing cannot be performed in the touch non-active area NTA. This exemplary embodiment may be applied when the touch non-active area NTA located at the upper side of the opening OP is not large. The second sensor pattern SP2 may not be patterned (or set) in the touch non-active area NTA at the upper side of the opening OP. Therefore, the material consumption for patterning the wiring line and the sensor pattern can be reduced.

13A and 13B are views showing an example of a touch sensor constructed according to another exemplary embodiment of the invention.

13A and 13B are substantially the same as or similar to the touch sensor of FIG5 except for the arrangement of the connection patterns. Therefore, components identical or corresponding to those of the touch sensor of FIG5 are denoted by the same reference numerals, and their repeated description will be omitted.

13A and 13B , the third opening sensor pattern pair OSP3 and OSP3' disposed adjacent to the opening OP may be electrically connected via a third connection pattern CP3, and the fourth opening sensor pattern pair OSP4 and OSP4' disposed adjacent to the opening OP may be electrically connected via a fourth connection pattern CP4.

The opening sensor patterns OSP3 and OSP3' included in one second sensor electrode IE2 and corresponding to each other may be defined as a third opening sensor pattern pair OSP3 and OSP3'.

For example, the third opening sensor pattern pair OSP3 and OSP3' and the fourth opening sensor pattern pair OSP4 and OSP4' may be some of the second sensor patterns SP2 included in the second sensor electrode IE2, respectively. In addition, the third opening sensor pattern pair OSP3 and OSP3' and the fourth opening sensor pattern pair OSP4 and OSP4' may correspond to the upper and lower sides of the opening OP.

Although FIGS. 13A and 13B illustrate a case in which each of the opening sensor patterns OSP3, OSP3', OSP4, and OSP4' has a shape in which the second sensor pattern SP2 is cut into a triangular shape, the shapes of the opening sensor patterns OSP3, OSP3', OSP4, and OSP4' are not limited thereto. The shape of each of the opening sensor patterns OSP3, OSP3', OSP4, and OSP4' may be modified corresponding to the position and shape of the opening OP.

In an exemplary embodiment, the third opening sensor pattern pair OSP3 and OSP3' may be connected by a third connection pattern CP3, and the fourth opening sensor pattern pair OSP4 and OSP4' may be connected by a fourth connection pattern CP4. The third connection pattern CP3 and the fourth connection pattern CP4 may be formed of a low resistance metal.

The third opening sensor pattern pair OSP3 and OSP3', the fourth opening sensor pattern pair OSP4 and OSP4', the third connection pattern CP3, and the fourth connection pattern CP4 may be formed in the same manner as described with reference to FIGS. 6 and 7 .

The second sensor electrode IE2 may be connected to the touch driver in a double wiring structure.

In an exemplary embodiment, the opening sensor pattern pairs respectively included in the first sensor electrode IE1 corresponding to the opening OP may be electrically insulated from each other. The wiring lines RL1-1, RL1-2, RL1'-1 and RL1'-2 may be connected to both ends of each first electrode IE1 corresponding to the opening OP to perform a touch sensing operation at the left and right sides of the opening OP.

In an exemplary embodiment, referring to FIG. 13B , the third opening sensor pattern pair OSP3 and OSP3' may be connected by a plurality of third connection patterns CP3. Similarly, the fourth opening sensor pattern pair OSP4 and OSP4' may be connected by a plurality of fourth connection patterns CP4. That is, a plurality of connection patterns are connected to the opening sensor pattern pair, so that the total resistance and RC delay may be reduced.

Fig. 14 is a view showing an example of a touch sensor constructed according to still another exemplary embodiment of the invention. Fig. 15 is a cross-sectional view showing an example of a section taken along a section line BB' of the touch sensor of Fig. 14 .

14 and 15, the first opening sensor pattern pair OSP1 and OSP1' disposed adjacent to the opening OP and at the left and right sides of the opening OP may be electrically connected through the first connection pattern CP1, and the second opening sensor pattern pair OSP2 and OSP2' disposed adjacent to the opening OP and at the left and right sides of the opening OP may be electrically connected through the second connection pattern CP2. In addition, the third opening sensor pattern pair OSP3 and OSP3' disposed adjacent to the opening OP and at the upper and lower sides of the opening OP may be electrically connected through the third connection pattern CP3, and the fourth opening sensor pattern pair OSP4 and OSP4' disposed adjacent to the opening OP and at the upper and lower sides of the opening OP may be electrically connected through the fourth connection pattern CP4.

Each of the first connection pattern CP1, the second connection pattern CP2, the third connection pattern CP3, and the fourth connection pattern CP4 may be formed by bypassing the opening OP. The first connection pattern CP1, the second connection pattern CP2, the third connection pattern CP3, and the fourth connection pattern CP4 do not contact each other. For example, the first connection pattern CP1 and the second connection pattern CP2 and the third connection pattern CP3 and the fourth connection pattern CP4 may be formed in different layers.

15 , a first conductive layer 22 , a second conductive layer 26 , and a third conductive layer 29 may be sequentially stacked on the encapsulation layer 16 of the display panel DP.

The first conductive layer 22 may include first and second connection patterns CP1 and CP2. The first conductive layer 22 may include a low resistance metal. The first conductive layer 22 may be formed or patterned to be spaced apart from the sidewall SW of the opening OP.

A first insulating layer 24 covering the first conductive layer 22 may be disposed on the encapsulation layer 16 .

The second conductive layer 26 may be disposed on the first insulating layer 24. The second conductive layer 26 may include sensor patterns SP1 and SP2 including opening sensor patterns OSP1, OSP1', OSP2, OSP2', OSP3, OSP3', OSP4, and OSP4'. The second conductive layer 26 may include a transparent conductive material. The second conductive layer 26 may be formed or patterned to be spaced apart from the sidewall SW of the opening OP.

In an exemplary embodiment, the second conductive layer 26 may be connected to the first conductive layer 22 through a contact hole penetrating the first insulating layer 24. For example, the first connection pattern CP1 may be connected to each of the first opening sensor pattern pair OSP1 and OSP1' through the contact hole.

A second insulating layer 28 covering the second conductive layer 26 may be disposed on the first insulating layer 24 .

The third conductive layer 29 may be disposed on the second insulating layer 28. The third conductive layer 29 may include third and fourth connection patterns CP3 and CP4. The third conductive layer 29 may include a low resistance metal. The third conductive layer 29 may be formed or patterned to be spaced apart from the sidewall SW of the opening OP.

In an exemplary embodiment, the third conductive layer 29 may be connected to the second conductive layer 26 through a contact hole penetrating the second insulating layer 28. For example, the third connection pattern CP3 may be connected to each of the third opening sensor pattern pairs OSP3 and OSP3' through the contact hole.

Therefore, the sensor patterns located at the left and right sides of the opening OP are electrically connected, and the sensor patterns located at the upper and lower sides of the opening OP are electrically connected.

FIG. 16 is a view illustrating an example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

8 and 16 , according to exemplary embodiments, the opening OP may have an area smaller than that of one intersection region EE.

In an exemplary embodiment, the opening sensor patterns OSP3 and OSP3' adjacent to the opening OP among the second sensor patterns SP2 may be connected to each other by bridges C2-1 and C2-2. The bridges C2-1 and C2-2 connected to the opening sensor patterns OSP3 and OSP3' may be formed to bypass the opening OP. Therefore, the bridges C2-1 and C2-2 connected to the opening sensor patterns OSP3 and OSP3' may be formed in a shape different from that of the bridges BR connected to other sensor patterns.

FIG. 17 is a view illustrating another example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

17 , a plurality of openings OP1 and OP2 may be formed in a touch active area of the touch sensor.

In an exemplary embodiment, the first and second openings OP1 and OP2 may be formed to be spaced apart from each other by a predetermined distance and correspond to one first sensor electrode IE1. The first sensor electrode IE1 may have opening sensor patterns OSP11, OSP12, OSP13, and OSP14 formed by the first and second openings OP1 and OP2.

The opening sensor pattern pair OSP11 and OSP12 corresponding to the first opening OP1 may be connected to each other through the first connection pattern CP11. In addition, the opening sensor pattern pair OSP13 and OSP14 corresponding to the second opening OP2 may be connected to each other through the second connection pattern CP12. The opening sensor pattern pairs OSP11, OSP12, OSP13, and OSP14 and the connection patterns CP11 and CP12 may be formed in different layers and may be connected through contact holes.

FIG. 18 is a view illustrating another example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

18 , the opening OP may be disposed avoiding the first sensor pattern SP1. In an exemplary embodiment, the size of the opening OP may be smaller than the size of one intersection area EE. The opening OP has no influence on the arrangement and design of the first sensor pattern SP1.

Portions SP2' and SP2" among the second sensor pattern SP2 corresponding to the opening OP may be insulated from each other at both sides of the opening OP. Portions SP2' and SP2" among the second sensor pattern SP2 corresponding to the opening OP may be connected to different wiring lines to perform touch sensing.

In an exemplary embodiment, portions SP2' and SP2" corresponding to the opening OP among the second sensor pattern SP2 may be electrically connected to each other through a bridge pattern (e.g., bridges C2-1 and C2-2 in FIG. 16) bypassing the opening OP.

FIG. 19 is a view illustrating still another example of an opening included in a touch sensor constructed according to an exemplary embodiment of the invention and a sensor pattern surrounding the opening.

19 , the opening OP may have an area smaller than that of one intersection region EE (eg, the intersection region EE in FIG. 18 ).

The opening sensor patterns OSP1 and OSP1' adjacent to the opening OP among the first sensor patterns SP1 may be connected to each other by one connection pattern CP. The connection pattern CP may be formed to bypass the opening OP. Although FIG. 19 shows a case where two connection patterns CP are provided at the upper and lower sides of the opening OP, the arrangement, number, and shape of the connection patterns CP are not limited thereto. For example, the connection pattern CP may be formed at only one of the upper and lower sides of the opening OP.

In an exemplary embodiment, the connection pattern CP may be formed in the same layer as the first sensor pattern SP1. In addition, the connection pattern CP may include the same material as the first sensor pattern SP1. For example, the connection pattern CP and the first sensor pattern SP1 may include a transparent electrode material such as ITO.

The connection pattern CP may be formed not to contact the adjacent second sensor pattern SP2. In addition, the connection pattern CP may be formed not to contact other first sensor patterns SP1 that do not correspond to the opening OP.

In an exemplary embodiment, the opening sensor patterns OSP3 and OSP3' adjacent to the opening OP among the second sensor patterns SP2 may be connected to each other by bridges C2-1 and C2-2. The bridges C2-1 and C2-2 connected to the opening sensor patterns OSP3 and OSP3' may be formed to bypass the opening OP. The bridges C2-1 and C2-2 may be disposed in a layer different from that of the first sensor pattern SP1 and the second sensor pattern SP2. Therefore, the bridges C2-1 and C2-2 are disposed in a layer different from that of the connection pattern and do not contact each other.

FIG. 20 is a view showing an example of a touch sensor according to another exemplary embodiment of the invention.

20 , the touch active area TA of the touch sensor may include a trench TR or a notch.

In the touch active area TA, the first electrodes IE1 - 1 to IE1 - j may be arranged along the second direction DR2 , and the second electrodes IE2 - 1 to IE2 - k may be arranged along the first direction DR1 .

Similar to the opening OP, some sensor patterns in the first electrode IE1 - 1 may be removed by the trench TR. Portions of the first electrode IE1 - 1 whose connection is cut off by the trench TR may be electrically connected by the connection pattern CP1 .

However, this is merely illustrative, and the shape and position of the trench TR are not limited thereto. The touch active area TA may have various shapes according to an electronic device applied thereto.

As described above, according to the structure of the touch sensor according to the exemplary embodiment of the invention, a display device and an electronic device having various touch active areas TA can be implemented. In addition, the sensing sensitivity and uniformity of the entire touch active area TA can be improved.

The touch sensor and display device according to the exemplary embodiment of the invention include wiring lines (i.e., the third wiring line and the fourth wiring line) respectively arranged at both ends of the sensor electrodes (i.e., the third sensor electrode and the fourth sensor electrode) separated corresponding to the opening, so that the increase in the number of lines in the peripheral area can be minimized, and the sensing sensitivity and sensing uniformity in the touch effective area can be improved. In addition, the first shielding electrode is additionally inserted between the second wiring line and the additionally arranged fourth wiring line, so that the electrical influence between the lines in the peripheral area can be reduced. Therefore, the touch sensing accuracy can be improved.

In addition, the touch sensor and display device according to the exemplary embodiment of the invention include a connection pattern connected between the opening sensor patterns. Therefore, touch sensing can be performed on the entire area where the sensor electrodes are arranged without adding any wiring lines, and the design space of the peripheral area can be fully guaranteed.

Although certain exemplary embodiments and implementations have been described herein, other embodiments and implementations will be apparent from this description. Therefore, the inventive concept is not limited to such embodiments, but is limited to the broader scope of the appended claims and various obvious modifications and equivalent arrangements as will be apparent to those skilled in the art.

Claims (19)

1. A touch sensor having a touch active area and a peripheral area surrounding at least a portion of the touch active area, the touch sensor comprising: first sensor electrodes each including a first sensor pattern arranged in a first direction, the first sensor electrodes being arranged in a second direction intersecting the first direction; second sensor electrodes each including a second sensor pattern arranged in the second direction, the second sensor electrodes being arranged in the first direction; an opening disposed in the touch active area and spaced apart from the first sensor electrode and the second sensor electrode; a first line connected to a portion of the first sensor electrode, the first line being disposed in the peripheral area; a second line connected to a portion of the second sensor electrode, the second line being disposed in the peripheral area; a first electrostatic protection line disposed in the peripheral region in a first open loop shape, and A second electrostatic protection line is separated from the first electrostatic protection line and is disposed in the peripheral area in a second open loop shape without surrounding the touch effective area, and at least one of the first line and the second line is disposed between the first electrostatic protection line and the second electrostatic protection line. 2 . The touch sensor of claim 1 , wherein the portion of the first sensor electrode and the portion of the second sensor electrode to which the first line and the second line are respectively connected include distal ends of the first sensor electrode and the second sensor electrode, respectively. 3 . The touch sensor of claim 1 , wherein at least one of the first line and the second line comprises a routing line. 4 . The touch sensor of claim 1 , wherein the first electrostatic protection line surrounds the first line and the second line along a periphery of the touch active area. 5 . The touch sensor of claim 1 , wherein some of the first sensor patterns of at least one of the first sensor electrodes are spaced apart from each other in the first direction, and the opening is disposed between the some of the first sensor patterns. 6. The touch sensor of claim 1 , wherein at least one of the first sensor electrodes comprises: a first portion including some of the first sensor patterns of the at least one first sensor electrode and disposed adjacent to a first side of the opening; and A second portion includes other first sensor patterns of the at least one first sensor electrode and is disposed adjacent to a second side of the opening opposite to the first side. 7 . The touch sensor of claim 6 , wherein one of the first lines is connected to the first portion, and another one of the first lines is connected to the second portion. 8. The touch sensor of claim 7, wherein at least one of the second sensor electrodes comprises: a third portion including some of the second sensor patterns of the at least one second sensor electrode and disposed adjacent to a third side of the opening disposed between the first side and the second side; and a fourth portion including other second sensor patterns of the at least one second sensor electrode and disposed adjacent to a fourth side of the opening disposed between the first side and the second side, the fourth side being opposite to the third side, and wherein one of the second lines is connected to the third portion, and another of the second lines is connected to the fourth portion. 9 . The touch sensor of claim 6 , further comprising a connection pattern disposed around the opening to connect one of the first sensor patterns of the first portion to one of the first sensor patterns of the second portion. 10 . The touch sensor of claim 9 , wherein one of the first lines is connected to the first portion. 11. The touch sensor of claim 10, wherein at least one of the second sensor electrodes comprises: a third portion including some of the second sensor patterns of the at least one second sensor electrode and disposed adjacent to a third side of the opening disposed between the first side and the second side; and a fourth portion including other second sensor patterns of the at least one second sensor electrode and disposed adjacent to a fourth side of the opening disposed between the first side and the second side, the fourth side being opposite to the third side, and wherein one of the second lines is connected to the third portion, and another of the second lines is connected to the fourth portion. 12 . The touch sensor of claim 10 , wherein another one of the first lines is connected to the second portion. 13 . The touch sensor of claim 1 , further comprising a shielding line disposed in the peripheral area and extending between one of the first lines and one of the second lines. 14. The touch sensor according to claim 1, further comprising: a first shielding line disposed in the peripheral region and extending between one of the first lines and the first electrostatic protection line; and A second shielding line is provided in the peripheral area and extends between one of the first lines and the second electrostatic protection line. 15. The touch sensor according to claim 1, further comprising: a first shielding line disposed in the peripheral region and extending between one of the second lines and the first electrostatic protection line; and A second shielding line is provided in the peripheral area and extends between one of the second lines and the second electrostatic protection line. 16 . The touch sensor of claim 1 , wherein some of the second sensor patterns of at least one of the second sensor electrodes are spaced apart from each other in the second direction, and the opening is disposed between the some of the second sensor patterns. 17. A display device, comprising: a display panel including an opening in a display area; and a touch sensor, comprising a touch effective area corresponding to the display area and a peripheral area surrounding at least a portion of the touch effective area, wherein the touch sensor is disposed on the display panel, Wherein, the touch sensor comprises: first sensor electrodes each including a first sensor pattern arranged in a first direction, the first sensor electrodes being arranged in a second direction intersecting the first direction; second sensor electrodes each including a second sensor pattern arranged in the second direction, the second sensor electrodes being arranged in the first direction; a first line connected to a portion of the first sensor electrode, the first line being disposed in the peripheral area; a second line connected to a portion of the second sensor electrode, the second line being disposed in the peripheral area; a first electrostatic protection line disposed in the peripheral region in a first open loop shape, and a second electrostatic protection line, which is separated from the first electrostatic protection line and arranged in the peripheral area in a second open loop shape without surrounding the touch effective area, and at least one of the first line and the second line is arranged between the first electrostatic protection line and the second electrostatic protection line, wherein some of the first sensor patterns of at least one of the first sensor electrodes are spaced apart from each other in the first direction, and the opening is disposed between the some of the first sensor patterns, and Some of the second sensor patterns of at least one of the second sensor electrodes are spaced apart from each other in the second direction, and the opening is disposed between the some of the second sensor patterns. 18 . The display device according to claim 17 , wherein at least one of the first line and the second line comprises a wiring line. 19 . The display device of claim 17 , wherein the first electrostatic protection line surrounds the first line and the second line along a periphery of the touch active area.